diff --git a/USERFLOWS.md b/USERFLOWS.md
index 482b9e7..3ffaa2c 100644
--- a/USERFLOWS.md
+++ b/USERFLOWS.md
@@ -52,11 +52,16 @@
 - [x] Slide order adjusts automatically
 
 ### Preview Slides
-- [ ] User can preview individual slides
-- [ ] User can view slides in presentation mode
-- [ ] User can navigate between slides in preview
+- [x] User can preview individual slides
 
 ### Slide Order Management
 - [ ] User can reorder slides via drag-and-drop
 - [ ] User can see slide order visually in editor
 - [ ] Slide order automatically saves when changed
+
+## Flow #3 - Present to oudience
+- [ ] User can start presentation mode from presentation editor
+- [ ] User can navigate slides in presentation mode
+- [ ] User can exit presentation mode
+- [ ] User can see slide notes in presenter view
+- [ ] User can control slide transitions and animations
\ No newline at end of file
diff --git a/public/themes-manifest.json b/public/themes-manifest.json
index 85ea119..4052630 100644
--- a/public/themes-manifest.json
+++ b/public/themes-manifest.json
@@ -12,5 +12,5 @@
       "hasMasterSlide": true
     }
   },
-  "generated": "2025-08-21T11:51:03.695Z"
+  "generated": "2025-08-21T14:20:36.144Z"
 }
\ No newline at end of file
diff --git a/src/App.tsx b/src/App.tsx
index 3ae590a..893164a 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -5,6 +5,7 @@ import { LayoutDetailPage } from './components/themes/LayoutDetailPage.tsx';
 import { LayoutPreviewPage } from './components/themes/LayoutPreviewPage.tsx';
 import { NewPresentationPage } from './components/presentations/NewPresentationPage.tsx';
 import { PresentationViewer } from './components/presentations/PresentationViewer.tsx';
+import { PresentationMode } from './components/presentations/PresentationMode.tsx';
 import { PresentationEditor } from './components/presentations/PresentationEditor.tsx';
 import { SlideEditor } from './components/presentations/SlideEditor.tsx';
 import { PresentationsList } from './components/presentations/PresentationsList.tsx';
@@ -25,6 +26,7 @@ function App() {
             <Route path="/presentations/new" element={<NewPresentationPage />} />
             <Route path="/presentations/:presentationId/edit/slides/:slideNumber" element={<PresentationEditor />} />
             <Route path="/presentations/:presentationId/view/slides/:slideNumber" element={<PresentationViewer />} />
+            <Route path="/presentations/:presentationId/present" element={<PresentationMode />} />
             <Route path="/presentations/:presentationId/slide/:slideId/edit" element={<SlideEditor />} />
             <Route path="/themes" element={<ThemeBrowser />} />
             <Route path="/themes/:themeId" element={<ThemeDetailPage />} />
diff --git a/src/components/presentations/PresentationMode.css b/src/components/presentations/PresentationMode.css
new file mode 100644
index 0000000..2aff6b7
--- /dev/null
+++ b/src/components/presentations/PresentationMode.css
@@ -0,0 +1,176 @@
+/* Fullscreen presentation mode styles */
+.presentation-mode {
+  position: fixed;
+  top: 0;
+  left: 0;
+  width: 100vw;
+  height: 100vh;
+  background: #000;
+  z-index: 9999;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  overflow: hidden;
+}
+
+.presentation-mode.loading,
+.presentation-mode.error {
+  flex-direction: column;
+  background: #1a1a1a;
+  color: #fff;
+}
+
+.presentation-mode .loading-spinner {
+  font-size: 1.2rem;
+  padding: 2rem;
+  text-align: center;
+}
+
+.presentation-mode .error-content {
+  text-align: center;
+  max-width: 600px;
+  padding: 2rem;
+}
+
+.presentation-mode .error-content h2 {
+  margin: 0 0 1rem 0;
+  font-size: 2rem;
+  font-weight: 300;
+}
+
+.presentation-mode .error-content p {
+  margin: 0 0 2rem 0;
+  font-size: 1.1rem;
+  opacity: 0.8;
+  line-height: 1.5;
+}
+
+.presentation-mode .exit-button {
+  background: #fff;
+  color: #000;
+  border: none;
+  padding: 0.75rem 1.5rem;
+  font-size: 1rem;
+  border-radius: 4px;
+  cursor: pointer;
+  transition: background-color 0.2s ease;
+}
+
+.presentation-mode .exit-button:hover {
+  background: #f0f0f0;
+}
+
+/* Fullscreen slide container */
+.presentation-mode.fullscreen {
+  background: #000;
+}
+
+.presentation-mode .slide-container {
+  width: 100%;
+  height: 100%;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  position: relative;
+}
+
+.presentation-mode .slide-content {
+  max-width: 90vw;
+  max-height: 90vh;
+  background: #fff;
+  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
+  position: relative;
+  overflow: hidden;
+}
+
+/* Aspect ratio classes for slides */
+.presentation-mode .slide-content.aspect-16-9 {
+  aspect-ratio: 16/9;
+  width: min(90vw, calc(90vh * 16/9));
+}
+
+.presentation-mode .slide-content.aspect-4-3 {
+  aspect-ratio: 4/3;
+  width: min(90vw, calc(90vh * 4/3));
+}
+
+.presentation-mode .slide-content.aspect-16-10 {
+  aspect-ratio: 16/10;
+  width: min(90vw, calc(90vh * 16/10));
+}
+
+/* Navigation indicator */
+.presentation-mode .navigation-indicator {
+  position: fixed;
+  bottom: 2rem;
+  left: 50%;
+  transform: translateX(-50%);
+  background: rgba(0, 0, 0, 0.7);
+  backdrop-filter: blur(10px);
+  color: #fff;
+  padding: 1rem 2rem;
+  border-radius: 2rem;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 0.5rem;
+  opacity: 0;
+  transition: opacity 0.3s ease;
+  pointer-events: none;
+}
+
+.presentation-mode:hover .navigation-indicator {
+  opacity: 1;
+}
+
+.presentation-mode .slide-counter {
+  font-size: 1.1rem;
+  font-weight: 500;
+}
+
+.presentation-mode .navigation-hints {
+  display: flex;
+  gap: 1rem;
+  font-size: 0.9rem;
+  opacity: 0.8;
+}
+
+.presentation-mode .navigation-hints span {
+  white-space: nowrap;
+}
+
+/* Responsive adjustments */
+@media (max-width: 768px) {
+  .presentation-mode .navigation-indicator {
+    bottom: 1rem;
+    padding: 0.75rem 1.5rem;
+    font-size: 0.9rem;
+  }
+  
+  .presentation-mode .navigation-hints {
+    flex-direction: column;
+    gap: 0.25rem;
+    text-align: center;
+  }
+  
+  .presentation-mode .slide-content {
+    max-width: 95vw;
+    max-height: 95vh;
+  }
+}
+
+/* Hide scrollbars in presentation mode */
+.presentation-mode * {
+  scrollbar-width: none; /* Firefox */
+  -ms-overflow-style: none; /* IE/Edge */
+}
+
+.presentation-mode *::-webkit-scrollbar {
+  display: none; /* Chrome/Safari */
+}
+
+/* Ensure theme styles work in fullscreen */
+.presentation-mode .slide-content > * {
+  width: 100%;
+  height: 100%;
+}
\ No newline at end of file
diff --git a/src/components/presentations/PresentationMode.tsx b/src/components/presentations/PresentationMode.tsx
new file mode 100644
index 0000000..df425f2
--- /dev/null
+++ b/src/components/presentations/PresentationMode.tsx
@@ -0,0 +1,238 @@
+import React, { useState, useEffect, useCallback } from 'react';
+import { useParams, useNavigate } from 'react-router-dom';
+import type { Presentation, SlideContent } from '../../types/presentation.ts';
+import type { Theme } from '../../types/theme.ts';
+import { getPresentationById } from '../../utils/presentationStorage.ts';
+import { getTheme } from '../../themes/index.ts';
+import { renderTemplateWithSampleData } from '../../utils/templateRenderer.ts';
+import { sanitizeSlideTemplate } from '../../utils/htmlSanitizer.ts';
+import { loggers } from '../../utils/logger.ts';
+import './PresentationMode.css';
+
+export const PresentationMode: React.FC = () => {
+  const { presentationId } = useParams<{ presentationId: string }>();
+  const navigate = useNavigate();
+  
+  const [presentation, setPresentation] = useState<Presentation | null>(null);
+  const [theme, setTheme] = useState<Theme | null>(null);
+  const [currentSlideIndex, setCurrentSlideIndex] = useState(0);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState<string | null>(null);
+  
+  // Keyboard navigation handler
+  const handleKeyPress = useCallback((event: KeyboardEvent) => {
+    if (!presentation || presentation.slides.length === 0) return;
+    
+    switch (event.key) {
+      case 'ArrowRight':
+      case 'Space':
+      case 'Enter':
+        event.preventDefault();
+        setCurrentSlideIndex(prev => 
+          Math.min(prev + 1, presentation.slides.length - 1)
+        );
+        break;
+        
+      case 'ArrowLeft':
+        event.preventDefault();
+        setCurrentSlideIndex(prev => Math.max(prev - 1, 0));
+        break;
+        
+      case 'Home':
+        event.preventDefault();
+        setCurrentSlideIndex(0);
+        break;
+        
+      case 'End':
+        event.preventDefault();
+        setCurrentSlideIndex(presentation.slides.length - 1);
+        break;
+        
+      case 'Escape':
+        event.preventDefault();
+        exitPresentationMode();
+        break;
+        
+      default:
+        // Handle number keys for direct slide navigation
+        const slideNumber = parseInt(event.key);
+        if (slideNumber >= 1 && slideNumber <= presentation.slides.length) {
+          event.preventDefault();
+          setCurrentSlideIndex(slideNumber - 1);
+        }
+        break;
+    }
+  }, [presentation, navigate, presentationId]);
+  
+  // Set up keyboard listeners
+  useEffect(() => {
+    document.addEventListener('keydown', handleKeyPress);
+    return () => {
+      document.removeEventListener('keydown', handleKeyPress);
+    };
+  }, [handleKeyPress]);
+  
+  // Load presentation and theme
+  useEffect(() => {
+    const loadPresentationAndTheme = async () => {
+      if (!presentationId) {
+        setError('No presentation ID provided');
+        setLoading(false);
+        return;
+      }
+
+      try {
+        setLoading(true);
+        
+        // Load presentation
+        const presentationData = await getPresentationById(presentationId);
+        if (!presentationData) {
+          setError(`Presentation not found: ${presentationId}`);
+          return;
+        }
+        
+        setPresentation(presentationData);
+        
+        // Load theme
+        const themeData = await getTheme(presentationData.metadata.theme);
+        if (!themeData) {
+          setError(`Theme not found: ${presentationData.metadata.theme}`);
+          return;
+        }
+        
+        setTheme(themeData);
+        
+        // Load theme CSS
+        const cssLink = document.getElementById('presentation-theme-css') as HTMLLinkElement;
+        const cssPath = `${themeData.basePath}/${themeData.cssFile}`;
+        if (cssLink) {
+          cssLink.href = cssPath;
+        } else {
+          const newCssLink = document.createElement('link');
+          newCssLink.id = 'presentation-theme-css';
+          newCssLink.rel = 'stylesheet';
+          newCssLink.href = cssPath;
+          document.head.appendChild(newCssLink);
+        }
+        
+      } catch (err) {
+        setError(err instanceof Error ? err.message : 'Failed to load presentation');
+      } finally {
+        setLoading(false);
+      }
+    };
+
+    loadPresentationAndTheme();
+    
+    // Cleanup theme CSS on unmount
+    return () => {
+      const cssLink = document.getElementById('presentation-theme-css');
+      if (cssLink) {
+        cssLink.remove();
+      }
+    };
+  }, [presentationId]);
+  
+  const exitPresentationMode = () => {
+    navigate(`/presentations/${presentationId}/view/slides/${currentSlideIndex + 1}`);
+  };
+  
+  const renderSlideContent = (slide: SlideContent): string => {
+    if (!theme) return '';
+    
+    const layout = theme.layouts.find(l => l.id === slide.layoutId);
+    if (!layout) {
+      loggers.ui.warn(`Layout ${slide.layoutId} not found in theme ${theme.name}`);
+      return '<div class="error">Layout not found</div>';
+    }
+    
+    let renderedTemplate = layout.htmlTemplate;
+    
+    // Replace template variables with slide content
+    Object.entries(slide.content).forEach(([slotId, content]) => {
+      const regex = new RegExp(`\\{\\{${slotId}\\}\\}`, 'g');
+      renderedTemplate = renderedTemplate.replace(regex, content);
+    });
+    
+    // Handle conditional blocks and clean up remaining variables
+    renderedTemplate = renderTemplateWithSampleData(renderedTemplate, layout);
+    
+    return sanitizeSlideTemplate(renderedTemplate);
+  };
+  
+  if (loading) {
+    return (
+      <div className="presentation-mode loading">
+        <div className="loading-spinner">Loading presentation...</div>
+      </div>
+    );
+  }
+
+  if (error) {
+    return (
+      <div className="presentation-mode error">
+        <div className="error-content">
+          <h2>Error Loading Presentation</h2>
+          <p>{error}</p>
+          <button onClick={exitPresentationMode} className="exit-button">
+            Exit Presentation Mode
+          </button>
+        </div>
+      </div>
+    );
+  }
+
+  if (!presentation || !theme) {
+    return (
+      <div className="presentation-mode error">
+        <div className="error-content">
+          <h2>Presentation Not Found</h2>
+          <button onClick={exitPresentationMode} className="exit-button">
+            Exit Presentation Mode
+          </button>
+        </div>
+      </div>
+    );
+  }
+
+  if (presentation.slides.length === 0) {
+    return (
+      <div className="presentation-mode error">
+        <div className="error-content">
+          <h2>No Slides Available</h2>
+          <p>This presentation is empty.</p>
+          <button onClick={exitPresentationMode} className="exit-button">
+            Exit Presentation Mode
+          </button>
+        </div>
+      </div>
+    );
+  }
+
+  const currentSlide = presentation.slides[currentSlideIndex];
+  const totalSlides = presentation.slides.length;
+  const renderedSlideContent = renderSlideContent(currentSlide);
+
+  return (
+    <div className="presentation-mode fullscreen">
+      <div className="slide-container">
+        <div 
+          className={`slide-content ${presentation.metadata.aspectRatio ? `aspect-${presentation.metadata.aspectRatio.replace(':', '-')}` : 'aspect-16-9'}`}
+          dangerouslySetInnerHTML={{ __html: renderedSlideContent }}
+        />
+      </div>
+      
+      {/* Navigation indicator */}
+      <div className="navigation-indicator">
+        <span className="slide-counter">
+          {currentSlideIndex + 1} / {totalSlides}
+        </span>
+        
+        <div className="navigation-hints">
+          <span>← → Space: Navigate</span>
+          <span>Esc: Exit</span>
+        </div>
+      </div>
+    </div>
+  );
+};
\ No newline at end of file
diff --git a/src/components/presentations/PresentationViewer.tsx b/src/components/presentations/PresentationViewer.tsx
index eb8f270..25b9c27 100644
--- a/src/components/presentations/PresentationViewer.tsx
+++ b/src/components/presentations/PresentationViewer.tsx
@@ -4,7 +4,6 @@ import type { Presentation } from '../../types/presentation.ts';
 import type { Theme } from '../../types/theme.ts';
 import { getPresentationById } from '../../utils/presentationStorage.ts';
 import { getTheme } from '../../themes/index.ts';
-import { loggers } from '../../utils/logger.ts';
 import './PresentationViewer.css';
 
 export const PresentationViewer: React.FC = () => {
@@ -86,8 +85,8 @@ export const PresentationViewer: React.FC = () => {
   };
 
   const enterPresentationMode = () => {
-    // TODO: Implement full-screen presentation mode
-    loggers.ui.info('Full-screen presentation mode requested - feature to be implemented');
+    if (!presentation) return;
+    navigate(`/presentations/${presentationId}/present`);
   };
 
   if (loading) {
diff --git a/src/components/presentations/PresentationsList.tsx b/src/components/presentations/PresentationsList.tsx
index c876808..5e47cb6 100644
--- a/src/components/presentations/PresentationsList.tsx
+++ b/src/components/presentations/PresentationsList.tsx
@@ -213,10 +213,7 @@ export const PresentationsList: React.FC = () => {
                     <button
                       type="button"
                       className="card-action secondary"
-                      onClick={() => {
-                        // TODO: Implement presentation mode
-                        alert('Presentation mode coming soon!');
-                      }}
+                      onClick={() => navigate(`/presentations/${presentation.metadata.id}/present`)}
                     >
                       Present
                     </button>